Alert archive / Iowa / Flash Flood Warnings in 1993

Flash Flood Warning 28, NWS Des Moines, IA

June 23, 1993Kossuth County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 23, 1993, 5:41 PM CDT for Kossuth County, Iowa. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Jun 23, 1993, 5:41 PM CDT (22:41 UTC)
Expired: Jun 23, 1993, 8:00 PM CDT
In force: 2 hr
Issued by: NWS Des Moines, IA
Area: Whole counties

County Kossuth County, IA

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.7 hours before the alert went out and 189 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 155 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 785 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -52 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -1.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 23, 4:43 PM CDT, 58 minutes before

IAZALL-232240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
443 PM CDT WED JUN 23 1993

AT 430 PM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS SITUATED OVER
NORTHWEST IOWA. THIS CLUSTER OF STORMS EXTENDED FROM 20 MILES EAST OF
SPENCER NEAR EMMETSBURG NORTHEAST TO THE IOWA/MINNESOTA BORDER 25 MILES
NORTHEAST OF EMMETSBURG. ANOTHER STRONG THUNDERSTORM HAD DEVELOPED 10
TO 15 MILES NORTH OF FORT DODGE NEAR HUMBOLDT. THESE STORMS WILL
EXTREMELY HEAVY RAIN...DEADLY LIGHTNING AND SOME PEA SIZED HAIL.

ISOLATED SHOWERS HAD DEVELOPED OVER FAR SOUTHEAST IOWA AROUND BLOOMFIELD
AND KEOSAUQUA OR SOME 15 TO 25 MILES SOUTH AND SOUTHEAST OF OTTUMWA.

THE SHOWERS AND STORMS WERE MOVING NORTH AT 20 TO 25 MILES AN HOUR.

BARLOW

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Special weather statement, Jun 23, 4:47 PM CDT, 54 minutes before

IAZALL-232240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
443 PM CDT WED JUN 23 1993

AT 430 PM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS SITUATED OVER
NORTHWEST IOWA. THIS CLUSTER OF STORMS EXTENDED FROM 20 MILES EAST OF
SPENCER NEAR EMMETSBURG NORTHEAST TO THE IOWA/MINNESOTA BORDER 25 MILES
NORTHEAST OF EMMETSBURG. ANOTHER STRONG THUNDERSTORM HAD DEVELOPED 10
TO 15 MILES NORTH OF FORT DODGE NEAR HUMBOLDT. THESE STORMS WILL
EXTREMELY HEAVY RAIN...DEADLY LIGHTNING AND SOME PEA SIZED HAIL.

ISOLATED SHOWERS HAD DEVELOPED OVER FAR SOUTHEAST IOWA AROUND BLOOMFIELD
AND KEOSAUQUA OR SOME 15 TO 25 MILES SOUTH AND SOUTHEAST OF OTTUMWA.

THE SHOWERS AND ST<ORMS WERE MOVING NORTH AT 20 TO 25 MILES AN HOUR.

BARLOW

Special weather statement, Jun 23, 4:51 PM CDT, 50 minutes before

IAZALL-232240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
443 PM CDT WED JUN 23 1993

AT 430 PM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS SITUATED OVER
NORTHWEST IOWA. THIS CLUSTER OF STORMS EXTENDED FROM 20 MILES EAST OF
SPENCER NEAR EMMETSBURG NORTHEAST TO THE IOWA/MINNESOTA BORDER 25 MILES
NORTHEAST OF EMMETSBURG. ANOTHER STRONG THUNDERSTORM HAD DEVELOPED 10
TO 15 MILES NORTH OF FORT DODGE NEAR HUMBOLDT. THESE STORMS WILL
PRODUCE EXTREMELY HEAVY RAIN...DEADLY LIGHTNING AND SOME PEA SIZED HAIL.

ISOLATED SHOWERS HAD DEVELOPED OVER FAR SOUTHEAST IOWA AROUND BLOOMFIELD
AND KEOSAUQUA OR SOME 15 TO 25 MILES SOUTH AND SOUTHEAST OF OTTUMWA.

THE SHOWERJS AND STORMS WERE MOVING NORTH AT 20 TO 25 MILES AN HOUR.

BARLOW

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 4:44 PM CDT	Flash Flood Warning	DMX	Emmet	2 hr
Jun 23, 6:36 PM CDT	Flash Flood Warning	DMX	Emmet	2 hr

Nearby

Flash Flood Warnings in Iowa, 1993 Every flash flood warning in 1993

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.